What is the problem you are having with rclone?
I have read https://rclone.org/crypt/#file-name-encryption-modes.
Are the numbers shown (~246, ~143) just for example? (or minimum of maximum filename lengths?)
Is it that what I should really care is actual underlying cloud provider's environment?
What is your rclone version (output from
rclone v1.52.3 - os/arch: windows/amd64 - go version: go1.14.7
Which OS you are using and how many bits (eg Windows 7, 64 bit)
Windows 10 (64bits) Build 19041.450
Which cloud storage system are you using? (eg Google Drive)